*{
    margin: 0;padding: 0;
}
html,
body,
#app{
    height: 100%;
}
.el-container{
    height: 100%;
}
.el-aside{
    background-color: #bbb;
}
.el-header{
    background-color: #999;
}
.el-main{
    background-color: #fff;
}
.el-card,
.el-pagination,
.el-table{
    margin-top: 20px;
}